Depending on your permissions, you may or may not have the ability to delete your own posts and replies. Note that when you delete your message, you also delete all of the replies to that message.
To delete a post or reply:
1. Navigate to the post or reply that you want to delete.
2. Click the Delete link. (If you do not see the Delete link, then you do not have permission to delete your messages. Note that your permissions may vary between one portlet instance and another.) After you click Delete, the system displays a dialog asking if you are sure you want to delete the message. Again, note that you are also deleting all of the replies to the message.
3. Click OK.